Example of what I think would work:
* top
* first document -- this is exported and we get the URL when we post
* <<anchor in first document>>
go to [[anchor in second document]]
* second document -- this is exported and we get the URL when we post
#+URL-FOR-EXTERNAL-ANCHORS http://example.org/first-document.html
* <<anchor in second document>>
go to [[anchor%20in%20first%20document][anchor in first document]]Comments are very welcome. Is the problem clearly explained here?
